diff options
| -rw-r--r-- | src/eom-scroll-view.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/eom-scroll-view.c b/src/eom-scroll-view.c index c83471c..fcd44ab 100644 --- a/src/eom-scroll-view.c +++ b/src/eom-scroll-view.c @@ -94,6 +94,7 @@ struct _EomScrollViewPrivate { guint image_changed_id; guint frame_changed_id; GdkPixbuf *pixbuf; + cairo_surface_t *surface; /* zoom mode, either ZOOM_MODE_FIT or ZOOM_MODE_FREE */ ZoomMode zoom_mode; @@ -168,6 +169,29 @@ G_DEFINE_TYPE (EomScrollView, eom_scroll_view, GTK_TYPE_TABLE) util functions ---------------------------------*/ +static cairo_surface_t * +create_surface_from_pixbuf (GdkPixbuf *pixbuf) +{ + cairo_surface_t *surface; + cairo_t *cr; + cairo_format_t format; + + if (gdk_pixbuf_get_has_alpha (pixbuf)) + format = CAIRO_FORMAT_ARGB32; + else + format = CAIRO_FORMAT_RGB24; + + surface = cairo_image_surface_create (format, + gdk_pixbuf_get_width (pixbuf), + gdk_pixbuf_get_height (pixbuf)); + cr = cairo_create (surface); + gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0); + cairo_paint (cr); + cairo_destroy (cr); + + return surface; +} + /* Disconnects from the EomImage and removes references to it */ static void free_image_resources (EomScrollView *view) @@ -195,6 +219,11 @@ free_image_resources (EomScrollView *view) g_object_unref (priv->pixbuf); priv->pixbuf = NULL; } + + if (priv->surface !=NULL) { + cairo_surface_destroy (priv->surface); + priv->surface = NULL; + } } /* Computes the size in pixels of the scaled image */ @@ -1847,6 +1876,11 @@ update_pixbuf (EomScrollView *view, GdkPixbuf *pixbuf) } priv->pixbuf = pixbuf; + + if (priv->surface) { + cairo_surface_destroy (priv->surface); + } + priv->surface = create_surface_from_pixbuf (priv->pixbuf); } static void @@ -2204,6 +2238,7 @@ eom_scroll_view_init (EomScrollView *view) priv->zoom_multiplier = IMAGE_VIEW_ZOOM_MULTIPLIER; priv->image = NULL; priv->pixbuf = NULL; + priv->surface = NULL; priv->progressive_state = PROGRESSIVE_NONE; priv->transp_style = EOM_TRANSP_BACKGROUND; priv->transp_color = 0; |